Test with pip<=21.1.1

[fridex]

This introduces a breaking change

• No

[sesheta]

Pre-Commit Test failed! Click here

[INFO] Initializing environment for git://github.com/Lucas-C/pre-commit-hooks.
[INFO] Initializing environment for git://github.com/pre-commit/pre-commit-hooks.
[INFO] Initializing environment for git://github.com/pycqa/pydocstyle.git.
[INFO] Initializing environment for https://github.com/pre-commit/pre-commit-hooks.
[INFO] Initializing environment for https://github.com/pre-commit/mirrors-mypy.
[INFO] Initializing environment for https://github.com/psf/black.
[INFO] Initializing environment for https://gitlab.com/PyCQA/flake8.
[INFO] Initializing environment for https://gitlab.com/PyCQA/flake8:pep8-naming.
[INFO] Installing environment for git://github.com/Lucas-C/pre-commit-hooks.
[INFO] Once installed this environment will be reused.
[INFO] This may take a few minutes...
[INFO] Installing environment for git://github.com/pre-commit/pre-commit-hooks.
[INFO] Once installed this environment will be reused.
[INFO] This may take a few minutes...
[INFO] Installing environment for git://github.com/pycqa/pydocstyle.git.
[INFO] Once installed this environment will be reused.
[INFO] This may take a few minutes...
[INFO] Installing environment for https://github.com/pre-commit/pre-commit-hooks.
[INFO] Once installed this environment will be reused.
[INFO] This may take a few minutes...
[INFO] Installing environment for https://github.com/pre-commit/mirrors-mypy.
[INFO] Once installed this environment will be reused.
[INFO] This may take a few minutes...
[INFO] Installing environment for https://github.com/psf/black.
[INFO] Once installed this environment will be reused.
[INFO] This may take a few minutes...
[INFO] Installing environment for https://gitlab.com/PyCQA/flake8.
[INFO] Once installed this environment will be reused.
[INFO] This may take a few minutes...
Tabs remover.............................................................Passed
Trim Trailing Whitespace.................................................Passed
Check for merge conflicts................................................Passed
Fix End of Files.........................................................Passed
Check for added large files..............................................Passed
check BOM - deprecated: use fix-byte-order-marker........................Passed
Check for case conflicts.................................................Passed
Check docstring is first.................................................Passed
Check JSON...............................................................Passed
Detect Private Key.......................................................Passed
Check python ast.........................................................Passed
Debug Statements (Python)................................................Passed
pydocstyle...............................................................Passed
Check Toml...............................................................Passed
Check Yaml...............................................................Passed
Fix End of Files.........................................................Passed
Trim Trailing Whitespace.................................................Passed
mypy.....................................................................Failed
- hook id: mypy
- exit code: 1

.github/workflows/prep_windows_matrix.py:14:38: error: Item "None" of "Optional[Match[str]]" has no attribute "groups"  [union-attr]
Found 1 error in 1 file (checked 2 source files)

black....................................................................Passed
flake8...................................................................Passed

[frenzymadness]

There are a lot of mypy errors. I'm not sure yet where are they coming from.

[fridex]

There are a lot of mypy errors. I'm not sure yet where are they coming from.

It's not clear to me why windows tests fail. Tests report Error: The operation was canceled.. A search for a similar issue on GitHub pointed to actions/runner-images#1918 (memory issues). Not sure if that's the case for us (?).

[fridex]

There are a lot of mypy errors. I'm not sure yet where are they coming from.

It's not clear to me why windows tests fail. Tests report Error: The operation was canceled.. A search for a similar issue on GitHub pointed to actions/virtual-environments#1918 (memory issues). Not sure if that's the case for us (?).

Hm, could these tests be terminated as https://github.com/thoth-station/micropipenv/pull/167/checks?check_run_id=2557409417 is failing? Then I see your point about mypy errors.

[frenzymadness]

I'm running all the tests locally so we can merge this and make the new test from #170 happy and we can then focus on the mypy errors on widows.

[frenzymadness]

Also, there are many changes in typing in the latest pip so the errors might come from some difference there.

[frenzymadness]

I can confirm that all tests are passing locally.

[sesheta]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: frenzymadness

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [frenzymadness]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[fridex]

Great, thanks for confirming. Let's merge then. 👍🏻